39 строки
1.2 KiB
Python
39 строки
1.2 KiB
Python
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# Copyright (c) Facebook, Inc. and its affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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def read(section, field, default = None):
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"""Read a `string` from `.buckconfig`."""
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return native.read_config(section, field, default)
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def read_bool(section, field, default = None, required = True):
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"""Read a `boolean` from `.buckconfig`."""
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# Treat the empty string as "unset". This allows the user to "override" a
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# previous setting by "clearing" it out.
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val = read(section, field)
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if val != None and val != "":
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# Fast-path string check
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if val == "True" or val == "true":
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return True
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elif val == "False" or val == "false":
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return False
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# Else fall back to lower casing
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if val.lower() == "true":
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return True
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elif val.lower() == "false":
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return False
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else:
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fail(
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"`{}:{}`: cannot coerce {!r} to bool".format(section, field, val),
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)
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elif default != None:
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return default
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elif not required:
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return None
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else:
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fail("`{}:{}`: no value set".format(section, field))
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